Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
Kowa500mm F/8	KOWA SIX	Telephoto	1970	500mm	f/8	2060g
Kowa55mm F/3.5	KOWA SIX	Prime	1968	55mm	f/3.5	850g
Kowa55mm F/3.5 [I]	KOWA SIX	Prime	1968	55mm	f/3.5	850g
Kowa55mm F/3.5 II	KOWA SIX	Prime	—	55mm	f/3.5	725g
Kowa85mm F/2.8	KOWA SIX	Telephoto	1968	85mm	f/2.8	530g
KowaProminar 350mm F/4 FL	INTERCHANGEABLE MOUNT	Telephoto	2010	350mm	f/4	2025g
KowaPROMINAR 35mm F/2.8 LSM	M39	Wide	1957	35mm	f/2.8	150g
KowaProminar 850mm F/9.6 FL	INTERCHANGEABLE MOUNT	Telephoto	2010	850mm	f/9.6	2270g
KristallKRINAR Anastigmat 50mm F/3.5 LSM	M39	Prime	1953	50mm	f/3.5	—
KristallSTEINAR Anastigmat 50mm F/3.5 LSM	M39	Prime	1949	50mm	f/3.5	—
KuribayashiC.C. [Auto] Petri 55mm F/2	PETRI	Portrait	1961	55mm	f/2	200g
KuribayashiC.C. Petri 55mm F/2	PETRI	Portrait	1961	55mm	f/2	200g
KuribayashiC.C. Petri Orikkor 135mm F/3.5	M42	Telephoto	1959	135mm	f/3.5	293g
KuribayashiC.C. Petri Orikkor 180mm F/3.5	M42	Telephoto	1959	180mm	f/3.5	610g
KuribayashiC.C. Petri Orikkor 50mm F/2	M42	Portrait	1959	50mm	f/2	—
KuribayashiK.C. Petri Orikkor 105mm F/3.5	M42	Telephoto	1959	105mm	f/3.5	270g
KuribayashiK.C. Petri Orikkor 35mm F/3.5	M42	Wide	1959	35mm	f/3.5	170g
KuribayashiK.C. Petri Orikkor 500mm F/8	M42	Telephoto	1959	500mm	f/8	1300g
KyoeiACALL 35mm F/2.8 LSM	M39	Wide	—	35mm	f/2.8	195g
KyoeiW. ACALL 35mm F/3.5	T MOUNT	Wide	—	35mm	f/3.5	—
KyoeiW. ACALL 35mm F/3.5 LSM	M39	Wide	—	35mm	f/3.5	149g
LaiLens50mm F/1.1 M	LEICA M	Portrait	2025	50mm	f/1.1	386g
Laowa17mm F/4 Zero-D Tilt-Shift	CANON RF+ FUJIFILM G, HASSELBLAD XCD, L-MOUNT, NIKON Z, SONY E, SONY FE	Tilt-shift	—	17mm	f/4	810g
Laowa200mm F/2 AF FF	CANON EF+ CANON EF-S, NIKON Z, SONY E, SONY FE	Telephoto	2025	200mm	f/2	1588g
Laowa50mm F/2.8 2x Ultra Macro APO MFT	MICRO 4/3	Cinema	—	50mm	f/2.8	240g
Laowa7.5mm F/2 MFT C-Dreamer	MICRO 4/3	Cinema	—	8mm	f/2	170g
Laowa8-15mm F/2.8 FF Zoom Fisheye	NIKON F	Cinema	—	8-15mm	f/2.8	650g
Laowa85mm F/5.6 2x Ultra Marco APO	CANON RF+ LEICA M, NIKON Z	Cinema	—	85mm	f/5.6	291g